So you go to the doctor, and the doctor gives you a prescription. You take the prescription to a pharmacy and they give you a few bags of pills and you don't know what the hell they are.
Well you can go to this website:
http://www.kmle.co.kr/ Just type in the inscription on the pill and a very detailed description of your drug will pop up in Korean.
The chemical names will be in English, so you can just copy and paste into google, and wikipedia yourself into comfort or fear of what you are putting into your body.